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Finding the Fourth Proportional to 34,230.86, 47,238.66 and 19,326.86

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Solution

The fourth proportional to 34,230.86, 47,238.66 and 19,326.86 is: 26,671.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,230.86 : 47,238.66 = 19,326.86 : x
  2. Step 2: Convert to fraction form
    34,230.86/47,238.66 = 19,326.86/x
  3. Step 3: Cross multiply
    34,230.86x = 47,238.66 × 19,326.86
  4. Step 4: Simplify right side
    34,230.86x = 912,974,968.41
  5. Step 5: Solve for x
    x = 912,974,968.41/34,230.86
  6. Step 6: Final answer
    x = 26,671.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.